Valve for water-gas plants.



No. 817,211. PATENTED APR. 10, 1906. J WILLIAMSON VALVE FOR WATER GASPLANTS.

APPLICATION FILED MAR. 11. 1905.

2 SHEETS-SHEET 1.

No. 817,211. PAT'BNTED APR. 10, 1906. J. WILLIAMSON. VALVE FOR WATERGAS" PLANTS.

APPLICATION FILED MAR. 11. 1905.

2 SHEETS-SHEET Z.

Qfizvenfm". W'ZZiamswz UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented April 10, 1906.

Application filed March 11, 1905. Serial No. 249,54.

To all whom, it may concern.-

Be it known that I, JOHN WILLIAMSON, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Valves for Water- GasFlants, of which the following is a specification.

My invention relates to valves, particularly such as are used inconnection with gasgenerating machines. It is illustrated in theaccompanying drawings, wherein Figure 1 is a side elevation, with partsbroken away and others shown in dotted lines, of a gas-generating plantto which my valve is applicable. Fig. 2 is a similar view of a modifiedarrangement of such plant. Fig. '3 is a cross-section through such valvewith parts shown in dotted lines for alternative position.

Like parts are indicated by the same letter in all the figures.

A is a furnace B, a carbureter; C, a superheater.

D is an air-blast pipe controlled by the valve D and leading into thefurnace A. From the bottom of the furnace a pipe D leads into a verticalpipe D which connects above with my valve E.

D is a pipe connecting the upper part of the furnace with the valve;D",a pipe leading from the valve into the carbureter B.

D is a pipe leading from the bottom of the carbureter into thesuperhcater C, and D is the stack leading from the top of thesuperheater C.

D is a pipe leading from the stack or upper part of the superheater C,and controlled by the valve D.

F is a steam-supply pipe having one branch F controlled by the valve Fsuch branch leading into the pipe D It has another branch F controlledby the valve F and discharging into the pipe D.

G is an oil-supply pipe opening into the carbureter B.

H is the operating-floor, and J is the basement-floor.

In the alternative form shown in Fig. 2 the arrangement is somewhatdifferent as to some of the parts, for the carbureter and superheaterare placed side by side and on top of the furnace.

K indicates the brick checker-Work inside the superheater; but anyinterior arrangement of either of the parts A B C can be used.

Hence I have not shown in detail the interior structures.

I shall now return to a more minute description of the valve E. Itcontains, associated with the case, a removable cover E, a cleaning-doorE hinged at E and secured in any desired manner-as, for example, by theset-screw E-and adapted to protect the cleaning-opening The severalparts are lined with iirebrick or the like so far as is possible,as-indicated at E. t is an annular valve-seat back of and protected bythe the brick E and held in position by the packing E, which may be ofasbestos. E is a somewhat-similar valve-scat held in position by thepacking E The valve consists of four parts, as follows: the annularvalve-rim E shaped, as shown, so as to engage the valveseat E back ofthe firebrick E, the disk valve E", the holding-arm E and the screwboltE, which secures the four parts together. The holding-ar1n E is pivotedon the axis E and is associated with an outer operating-arm E carryingthe weight E and connected by a link E eccentrically with the operatinghand-wheel E on the support E The parts I have shown must be taken as ina sense diagrammatic and intended to illustrate in a general way thestructure and form of my device rather than to display its final or mostapproved form.

The use and operation of my invention are as follows: In valves of thiskind and used for this purpose there is of course a good deal ofdifliculty due to the fact that the valves are subjected to enormousheat. There is also trouble due to the fact that a furnace which takesthe oxygen out of steam is liable to become choked or its fire cooled,so as to become less effective if the supply of steam is steadily passedthrough the furnace in one and the same direction. It is necessary,therefore, that the valve be double-acting or that it operate as adouble-run valve. Keeping this in mind, I shall proceed to describe theinvention. The interior of the valve is arranged so that it can bebrick-lined fireproofed. That seat which is liable'to eX 0- sure to thegreatest heat during the operation of the air-blast is hidden out ofsight and protected in such a way as to be little affected by such heator at least to be protected from the products of combustion. Thevalveseat associated with the vertical pipe does not need so muchprotection, although it can be built in the same way, if desired, inwhich event an inwardly-projecting rim would be formed on the diskvalve. The valve itself is arranged so that any one of its parts whenwarped or injured may be easily removed Without loosening the others. Byloosening the screw-bolt E the parts may be separated and the injuredone removed. The counterweight E is arranged so as to balance the valveand make it easy to operate. In the operation of the entire device thefurnace is properly charged, the air-blast valve is 0 en, and theoperation of heating the entire p ant and bringing the furnace to aproper condition is carried on. The air-blast enters at the bottom ofthe furnace, passes out through the top and through the valve, whoseparts are in the position indicated in dotted lines in Fig. 3, thencedown through the carbureter and up through the superheater and outthrough the stack, the valve D being closed. When the parts are suitablyheated, steam is supplied, for example, through the pipe F, the valvebeing shown in the position indicated in dotted lines in Fig. 3. Thesteam passes up through the furnace, is freed of its oxygen, residuumpasses into the top of the carbureter, to which oil is being suppliedfrom the oil-pipe, the process of carburization takes place, thecombination passes through the pipe D into the superheater O, and thenceout through the pipe D to the storage-tank. The valve D is open, and thestack valve or cap is closed. This process if continued long enough willresult in cooling the furnace, whereupon the flow of steam may bereversed by cutting off the valve F opening the valve F, and supplyingsteam through the pipe F into the pipe D. If the valve is placed in theposition indicated in Fig. 3, the steam will pass down through thefurnace, up the pipe D and continue its course as before.

I claim- 1. In a valve device, the combination of a valvecasing with anopening therein, a

valve-seat surrounding said opening, fireproofing extending around saidopening within the valve-seat and projecting beyond the seat so as toprotect the same, and a valve to close said opening.

2. In a valve device, the combination of a valvecasing with an openingtherein, a valve-seat surrounding said opening, a protecting-lining insaid opening and extending beyond the seat so as to protect the same,and a valve comprising a dish-shaped rim part to engage the seat.

3. In a valve device, the combination of a valvecasing with an openingtherein, a valve-seat surrounding said opening, a protecting-lining insaid opening and extending beyond the seat so as to protect the same,and a valve comprising a removable central disk, and a dishshaped rimpart to engage the valve-seat. I

4. In a valve device, the combination of a valve-casing with an openingtherein, a valve-seat surrounding said opening, a protecting-lining insaid opening and extending beyond the seat so as to protect the same, ahinged flat valvev comprising a supporting part, a removable centraldisk, an annular dish-shaped rim part, and means for securing such rimand disk to the supporting part.

5. In a valve device, the combination of a valve-casing having an inletand an outlet, a valve to close the inlet, av-alve-seat surrounding saidinlet, and a fireproof lining for the inlet extending beyond thevalve-seat.

6. In a valve device, the combination of a valve-casing having twoinlets and an outlet, a double-run valve adapted to close one or theother of the inlets, valve-seats at said inlets, and a fireproof liningin one of said inlets projecting beyond the valve-seat.

JOHN WILLIAMSON.

Witnesses S. H. MOORE, J. H. EUsTAo

